湖北农业科学 ›› 2022, Vol. 61 ›› Issue (7): 35-40.doi: 10.14088/j.cnki.issn0439-8114.2022.07.007

• 资源·环境 • 上一篇    下一篇

生物肥对稻田养殖螺蛳产量、水质及土壤肥力的影响

李威锋1, 郑炳言1, 王志强2, 罗福广2, 蒋明3, 李艳和1   

  1. 1.华中农业大学水产学院/水产养殖国家级实验教学示范中心,武汉 430070;
    2.广西柳州市渔业技术推广站,广西 柳州 545006;
    3.中国水产科学研究院长江水产研究所,武汉 430223
  • 收稿日期:2021-12-13 出版日期:2022-04-10 发布日期:2022-05-04
  • 通讯作者: 李艳和(1976-),安徽滁州人,副教授,博士,主要从事水产动物遗传育种研究,(电子信箱)liyanhe@mail.hzau.edu.cn。
  • 作者简介:李威锋(1999-),女,山西平遥人,研究方向为水产养殖,(电话)15827646997(电子信箱)3291604158@qq.com
  • 基金资助:
    广西农业科技自筹经费项目(Z201973); 广西柳州市财政资金资助项目(LZT18-201)

Effect of biological fertilizer on snail growth, water quality and soil fertility in paddy field culture

LI Wei-feng1, ZHENG Bing-yan1, WANG Zhi-qiang2, LUO Fu-guang2, JIANG Ming3, LI Yan-he1   

  1. 1. College of Fisheries, Huazhong Agricultural University/National Demonstration Center for Experimental Aquaculture Education, Wuhan 430070, China;
    2. Liuzhou Aquaculture Technology Extending Station, Liuzhou 545006, Guangxi, China;
    3. Yangtze River Fisheries Research Institute, Chinese Academy of Fisheries Sciences,Wuhan 430223, China
  • Received:2021-12-13 Online:2022-04-10 Published:2022-05-04

摘要: 为了调查评估广西柳州柳江区里高镇螺蛳养殖基地稻田施生物肥和投喂饲料对稻田土壤肥力以及螺产量的影响,采用(碱性)过硫酸钾法测定土壤和水质的总氮、总磷,采用灼烧法测定土壤有机质含量,分别在2020年11月2日、11月30日、2021年4月2日进行3次养殖稻田螺估产。结果表明,施生物肥的稻田螺增产率可达31.73%~40.90%,要高于单投饲料稻田,而施生物肥+投喂饲料的稻田要整体高于单施生物肥的,可达50.62%~57.86%。对土壤肥力指标进行主成分分析,计算出土壤肥力综合指标得分发现,生物肥的投入使得土壤总磷含量显著增加(P<0.05),其余土壤肥力相关指标和肥力综合得分并无显著影响(P>0.05)。

关键词: 螺蛳养殖, 生物肥, 土壤肥力, 测产

Abstract: In this study, the changes of paddy fields soil fertility and snails production after the application of biological fertilizer and fodder feeding in Ligao town, Liujiang, Liuzhou, Guangxi,were investigated and evaluated, potassium persulfate method was applied to measure total nitrogen and total phosphorus of water and soil, soil organic matter content was measured by calcination method. Snails yield estimation was carried out in Nov.2 and Nov.30, 2020, Apr.2, 2021,respectively. The results showed that the increase rate of snails in the paddy field of applying biological fertilizer(BF)was 31.73%~40.90%, greatly exceeding the yield which only applied fodder. On the whole, the results of applying biological fertilizer and fodder simultaneously(BDF)were best, achieving the level of 50.62%~57.86%. Principal component analysis was applied to calculate the comprehensive score of soil fertility, it was found that the addition of biological fertilizer significantly promoted soil total phosphorus(P<0.05), however, other soil fertility indexes and comprehensive fertility scores were not significantly affected by that measure(P>0.05).

Key words: snails culture, biological fertilizer, soil fertility, yield estimation

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